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How to Remove old cast iron radiator

i have some radiators that I need to remove for remodeling, and Im looking for some help on how to get these things out.

here are some images of the connection pipes on both sides -- if anyone could guide me through the process i would appreciate it!

http://www.apolloaudioanddata.com/Images/radiotorleft.jpg

(i can rotate the big bolt in the middle, but i cant spin the bolts on the outtake pipe)

http://www.apolloaudioanddata.com/Images/radiotorright.jpg

(i can spin the big bolt in the middle, and the mushroom cap spins to turn off the intake)

im guessing somehow that the intake / outtake pipes coming up from the floor should be able to rotate somehow, so that i can pull the radiator out (towards me, if i am facing the radiator as in the photos) but im not sure which bolts i am to be needing to loosen.

The system is hot water so you better make sure you drain down the system completely before loosening the union Ell or valve and there will be really dirty water in the radiator so place some rags under the fittings

Because it is a water system rather then steam the unions should open relatively easy.

Larry, do not take it for granted as many installers figure one valve fits all and even reading Google steam radiator valves some state good for hot water positive shut off

This is a crazy statement as the unknowing think shutting off the valve then disconnect the rad forgetting /not knowing water seeks its own level and the system still has water on the side of the union ell.

BV001126

09:33AM | 05/24/13

I want to remove a cast iron radiator in my kitchen and have access to the pipes in the basement.
I know that I have to drain the system first but need some advice on removing and capping the pipes in the basement.